©2014 Glenair, Inc.

REV: 5

US Cage Code 06324

Printed in USA

GLENAIR, INC.

∙ 1211 AIR WAY ∙ GLENDALE, CA 91201-2497

∙ TEL: 818-247-6000

∙ FAX: 818-500-9912

www.glenair.com

PAGE 6 of 13

E-mail: sales@glenair.com

050-336 Product Brief

PCB Mount Quad Transmitter

100 Mbps – 5 Gbps, MMF, 3.3V

indicates a fault. The TX FAULT will be latched high when a laser fault occurs and is cleared by toggling the TX ENABLE

input or cycling the power of the transceiver. The transmitter fault condition can also be monitored via the 2-wire serial

interface (address A2, byte 110, bit 2).

Eye Safety Circuit

The Transmitter section provides Class 1 eye safety by design and is compliant with US FDA CDRH AEL Class 1 and

EN(IEC) 60825-1,2, EN60950 Class 1. The eye safety circuit continuously monitors optical output power levels and will

disable the transmitter and assert a TX_FAULT signal upon detecting an unsafe condition. Such unsafe conditions can be

created by inputs from the host board (Vcc fluctuation, unbalanced code) or faults within the module.

FUNCTIONAL I/O

The PCB mount transmitter accepts industry standard differential signals such as LVPECL and CML within the scope of

the SFP MSA. To simplify board requirements, transmitter bias resistors and ac coupling capacitors are incorporated, per

SFF-8074i, and hence are not required on the host board. The module is AC-coupled and internally terminated.

Figure 3 illustrates a recommended interface circuit to link the PCB mount transmitter to the supporting Physical Layer

integrated circuits.